This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: In order for a substance to sustain a fission chain reaction, one important condition is that A) ... (Read 38 times)

clmills979

  • Hero Member
  • *****
  • Posts: 551
on: Jul 29, 2018
In order for a substance to sustain a fission chain reaction, one important condition is that
 
  A) each fissioning nucleus must release a sufficient number of neutrons.
  B) the nuclei must collide with enough energy to overcome the electrical repulsion between them.
  C) each fissioning nucleus must release a sufficient number of alpha-particles.
  D) energy must be continually supplied from the outside.
  E) the nuclei must stay in shape by maintaining a regular jogging program.

Question 2

When an object 1.15 cm tall is placed 12 cm from a lens, the lens produces an upright image of the object that is 5.75 cm tall. What is the focal length of the lens?
 
  A) 24 cm
  B) 18 cm
  C) 60 cm
  D) 15 cm
  E) 9.0 cm


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

medine

  • Sr. Member
  • ****
  • Posts: 344
Reply #1 on: Jul 29, 2018
Answer to Question 1

A

Answer to Question 2

D


clmills979

  • Hero Member
  • *****
  • Posts: 551
Reply #2 on: Jul 29, 2018
Both answers were spot on, thank you once again


medine

  • Sr. Member
  • ****
  • Posts: 344
Reply #3 on: Jul 29, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

Malaria mortality rates are falling. Increased malaria prevention and control measures have greatly improved these rates. Since 2000, malaria mortality rates have fallen globally by 60% among all age groups, and by 65% among children under age 5.

Did you know?

According to research, pregnant women tend to eat more if carrying a baby boy. Male fetuses may secrete a chemical that stimulates their mothers to step up her energy intake.

Did you know?

Asthma-like symptoms were first recorded about 3,500 years ago in Egypt. The first manuscript specifically written about asthma was in the year 1190, describing a condition characterized by sudden breathlessness. The treatments listed in this manuscript include chicken soup, herbs, and sexual abstinence.

Did you know?

There are 60,000 miles of blood vessels in every adult human.

Did you know?

Adults are resistant to the bacterium that causes Botulism. These bacteria thrive in honey – therefore, honey should never be given to infants since their immune systems are not yet resistant.

Rituals such as the sacrament of the Anointing of the Sick are important expressions of religious be Rituals such as the sacrament of the Anointing of the Sick are important expressions of religious be
allergic reaction allergic reaction
How to find the derivatives of trigonometric functions using the chain rule (Part 1) How to find the derivatives of trigonometric functions using the chain rule (Part 1)
Reaction 3: The Second Investment of ATP Reaction 3: The Second Investment of ATP
Reaction 1: The Initial Dehydrogenation Reaction 1: The Initial Dehydrogenation
Elongation of the growing polypeptide chain during translation Elongation of the growing polypeptide chain during translation
Video: Magnetic resonance imaging (MRI)

For a complete list of videos, visit our video library